INTEX is a text processor; it is usually used to parse corpora of several megabytes. It includes several built-in large coverage dictionaries and grammars represented by graphs; the user inay add his/her own dictionaries and gramnlars. These tools am applied to texts in order to locate lexical and syntactic patterns, remove ambiguities , and tag words. INTEX builds collcordances and indexes of ...

Given a sequence of n real numbers a1, a2, a3, . . . , an, the maximum segment sum problem is that of determining indices i and j (1 ≤ i ≤ j ≤ n) such that the sum s(i, j) = ai + ai+1 + . . . + aj is a maximum. Monotone matrices were shown to be remarkably effective in solving several geometric optimization problems. The surprise is that it can also be applied to the above problem as we show he...

Studies on the structure of economic systems are, most frequently, carried out by the methods of informational statistics. These methods, often accompanied by a broad range of indicators (Shannon entropy, Balassa coefficient, Herfindahl specialty index, Gini coefficient, Theil index, etc.) around which a wide literature has been created over time, have a major disadvantage. Their weakness is re...

Statistics is full of models; they are everywhere. Whether designing an experiment, analyzing the results, or predicting, statisticians use models. Models can help us improve estimation. They can help us understand what underlies a process studied. They can help us predict future situations and actions. Economics, engineering, biology, ecology, health sciences, and other research fields, all ar...

Code metrics collected at the method level are often aggregated using summation to capture system properties at higher levels (e.g., fileor package-level). Since defect data is often available at these higher levels, this aggregation allows researchers to build defect prediction models. Recent findings by Landman et al. indicate that aggregation is likely to inflate the correlation between size...

Zoonosis refers to the transmission of infectious diseases from animal to human. The increasing number of zoonosis incidence makes the great losses to lives, including humans and animals, and also the impact in social economic. It motivates development of a system that can predict the future number of zoonosis occurrences in human. This paper analyses and presents the use of Seasonal Autoregres...

This paper analyzes the evolution of pay inequality in Cuba from the early 1990s through 2004 during what was known as the “Special Period in Times of Peace” and after. We measured pay inequality across sectors and regions using the between-groups component of Theil’s T statistic, and we mapped the changing components of that statistic in order to provide a compact summary of structural change ...

Abstract Economics and social science research often require analyzing datasets of sensitive personal information at fine granularity, with models fit to small subsets the data. Unfortunately, such fine-grained analysis can easily reveal individual information. We study regression algorithms that satisfy differential privacy , a constraint which guarantees an algorithm’s output reveals little a...

The use of residuals for detecting departures from the assumptions of the linear model, whether full rank or not, has long been recognized as an important diagnostic tool, once it became computationally feasible to compute them in a straight forward way, and several contributions to the literature have focussed on their underlying properties and their effectiveness. The recursive residuals are ...

In the United States, the USDA Natural Resources Conservation Service (NRCS) is the primary agency charged with the task of reducing wind erosion associated with production agriculture. The NRCS has used the Wind Erosion Equation (WEQ) (Woodruff and Siddoway, 1965) to assess the effects of field management on the potential for wind erosion for the last two and a half decades. The WEQ uses input...